Practice free NEET NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which of the following substitution of benzene is ortho-para in electrophilic substitution and ortho-para in nucleophilic substitution ?
(b) -N=O has +M and -M effect depend upon type of group attached.
Many organic compounds are prepared by using PCl5 because:
Substitution of -OH group from a substrate can be easily made by PCl5
Common oxidizing agents used in organic chemistry are;
(d) All these are oxidizing reagents
In E2 elimination, some compounds follow Hofmann's rule which means:
(d) Follow elimination rules.
The hydrolysis of alkyl halides by aqueous NaOH is best termed as:
SN1 reaction on optically active substrates mainly gives:
(c) SN1 mechanism gives rise to 50% inversion as it involves front seat as well as back seat substitution. this leads to racemic products
"The negative part of the addendum adds on the carbon atom joined to the least number of hydrogen atoms." This statement is called as:
(a) it is Markownikoff's rule
Hydrolysis of propane gives:
Amongst the following which of the above are true for SN2 reaction?
(i) The rate of reaction is independent of the concentration of the nucleophile
(ii) the nucleophile attacks the carbon atom on the side of the molecule opposite to the group being displaced.
(iii) The reaction proceeds with simultaneous bond formation and bond rupture.
(d) Follow characteristics of SN2 mechanism
Carbanions initiate:
Carbanions are nucleophilic species that can initiate both addition and substitution reactions. They can attack electrophilic centers in molecules, leading to addition reactions, or displace leaving groups, resulting in substitution reactions.
Ready to ace NEET?
Free access · No credit card required
Yes. You can attempt every NEET question on this page for free without logging in, and check the correct answer with a detailed explanation instantly.
No account is required to attempt questions and view answers. A free account adds bookmarks, personal notes, and progress tracking.
The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.